No policy of fire and extended coverage insurance issued by an authorized insurer covering property or risks in this state shall contain any clause or provisions requiring the insured to take out or maintain a larger amount of insurance than that covered by such policy or providing in any way that the insured shall be liable as a co-insurer with the insured unless such clause has been approved by the commissioner of insurance, and there has been a consideration allowed in the rate of premium charged for such policy.
La. R.S. § 22:1317